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Finding the Fourth Proportional to 70,673.85, 97,546.82 and 40,476.65

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Solution

The fourth proportional to 70,673.85, 97,546.82 and 40,476.65 is: 55,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,673.85 : 97,546.82 = 40,476.65 : x
  2. Step 2: Convert to fraction form
    70,673.85/97,546.82 = 40,476.65/x
  3. Step 3: Cross multiply
    70,673.85x = 97,546.82 × 40,476.65
  4. Step 4: Simplify right side
    70,673.85x = 3,948,367,801.64
  5. Step 5: Solve for x
    x = 3,948,367,801.64/70,673.85
  6. Step 6: Final answer
    x = 55,867.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.